Experimental evidence for distinct costs of pathogenesis and immunity against a natural pathogen in a wild bird

Abstract excerpt

Protective immunity is expected to evolve when the costs of mounting an immune response are less than those of harbouring pathogens. Estimating the costs of immunity vs. pathogenesis in natural systems is challenging, however, because they are typically closely linked. Here we attempt to disentangle the relative cost of each using experimental infections in a natural host-parasite system in which hosts (house...

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